She seems to be rotated approx 30 degrees from the left and her body is leaning 50 degrees from the vertical.
Using the given data, the total height is 170mm, and by using scale, her legs seems to be 100mm and head is 36mm long. The real length of the body can be taken by dividing the length in the picture by the cosines of the angles of inclination in eack axis, 30 and 50. so torso length is 52mm/[(cos30)x(cos50)] which yields a torso+neck of 93mm.

Adding all lengths, her total height is 229mm.

Because GSC claims that she is 1/7 scale, we multiply her figure approx body height by 7, giving us her "real" height of 1603mm, or thats 160.3cm.

her real height and weight is claimed to be 160cm, and 52kg respectively.
Therefore, the scale is actually quite acurate and her height of 170mm(6.63") is correct for that pose.

MYTH CONFIRMED.

EDIT: I reviewed the image using a different computer (with a 16:9 monitor) and I saw few errors in my previous scaling. The image her legs are 104mm, her torso in the image is 48mm giving a straight length of 86mm, and her head is 39mm, coicidentally still giving the 229mm height. It actually depends on the pixel ratio of the monitor.

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